Highlights:1. Citizen groups increasingly embrace low-cost sensor networks, open data and social media for environmental monitoring.2. Case studies in monitoring provide insight in how social-technical innovations of 'citizen-sensor-networks' come about and form 'networked geo-information tools' in a process of co-construction.3. Analyzed citizen-sensor-networks, which monitor airport noise and gas-extractioninduced earthquakes, publicly falsified the hypotheses held by governing regimes.4. Through processes of collective sense-making and meaning construction, citizensensor-networks form a powerful tool for informed planning. There is a shift in power balance involved between government and affected communities, as the government no longer has information monopoly on environmental measurements.
Abstract:This paper presents one emerging social-technical innovation: The evolution of citizensensor-networks where citizens organize themselves from the 'bottom up', for the sake of confronting governance officials with measured information about environmental qualities. We have observed how citizen-sensor-networks have been initiated in the Netherlands in cases where official government monitoring and business organizations leave gaps. The formed citizen-sensor-networks collect information about issues that affect the local community in their quality-of-living. In particular, two community initiatives are described where the sensed environmental information, on noise pollution and gas-extraction induced earthquakes respectively, is published through networked geographic information methods. Both community initiatives pioneered in developing an approach that comprises the combined setting-up of sensor data flows, real-time map portals and community organization. Two particular cases are analyzed to trace the emergence and network operation of such 'networked geo-information tools' in practice: (1) The Groningen earthquake monitor, and (2)